Fan injector



2 Sheets-Sheet 1 [X I "EIYTOR I TJW FAN INJECTOR E. L. ANDERSON FiledNov.

Aug. 15, 1933.

lbs.

.-1 TTOR XE Aug. 15, 1933. E. 1.. ANDERSON FAN INJECTOR Filed Nov. 10,1930 2 Sheets-Sheet 2 [N VENTOR 4 7 [ORA b Patented Aug. 15, 1933 UNITEDSTATES PATENT OFFICE to American Blower Corporation,

Detroit,

Mich., a Corporation of Delaware Application November 10, 1930 SerialNo. 494,580

7 Claims.

This invention relates to improvements in means for removing air fromchambers and other inclosures.

It is also an object of this invention to provide,

in connection with means for removing air from one inclosure, meansoperated by the air being removed to remove air from another chamber.

It is also an object of this invention to provide, in connection withmeans for removing air from chambers and compartments, means foradmitting fresh air thereto to take the place of the removed stale orimpure air.

It is another object of. this invention to provide, in connection withventilating means, a double spout nozzle adapted to be connected to afan so that the ejected air passing through one part of the nozzle willdraw air through. another part of the nozzle from a separate compartmentfrom that forced through the first nozzle.

While this invention is particularly adapted for use on boats it may beequally well used in connection with stationary buildings, for removingstale and impure air from various compartments.

.These and other advantages will appear from the following descriptiontaken in connection with the accompanying drawings.

Referring to the drawings:

Figure 1 is a vertical longitudinal section through one part of a boat,showing applicants invention applied thereto for ventilating purposes.

Figure 2 is a side elevation of applicants fan injector and ventilator,showing in section the injector nozzle.

Figure 3 is a side elevation of the fan injector or ventilatingapparatus with the inlet spout partly cut away.

Figure 4 is a top plan view of the injector attachment.

In Figure 1 applicants invention is applied to a boat, indicated by thenumeral 1. In this boat are shown compartments or chambers 2 and 3, onebeing above the other. In the upper compartment is located the motor 4for propelling the boat. Beneath compartment 2, with the motor therein,is compartment 3, into which extends one end of an intake spout 10.

For removing the air from the various compartments there is provided afan casing 5, with a suitable fan located therein but not shown. Thisfan is supported by means of a bracket 6 and screws 7 on a partitionwall 8. This partition wall separates the chambers 2 and 3 from anadjacent chamber 20. Extending downwardly from the fan casing is anintake spout 9. As

shown in Figure 1 the casing is located on the upper end of the wall 8in the motor chamber 2, with the intake spout 9 extending down into thelower chamber orlcompartment 3.

The lower end of the intake spout is cut at a slant, indicated by thenumeral 10, so that the fetid, stale and impure air found in the chamberor compartment 3 may be readily drawn into the intake spout for beingforced out through the outlet spout 11.

The overhead covering oi. the compartment 2 is indicated by the numeral12. This may be merely an overhead ceiling for the compartment 2 or itmay be a floor supporting any structure above the compartments 2 and 3and any adjacent compartments. In this overhead floor or ceiling is anopening which receives a projection on a compound spout and injectormechanism. The inner part of this compound spout and injector isindicated by the numeral 13 and constitutes a spout or nozzle attachedto the outlet 11. This spout 13 is flat and broad, as indicated in Fiure 4.

Around the spout 13 is a similarly shaped outer spout member 14, whichextends outwardly beyond the outer end of the inner spout 13. These twospout members are held together by means of stays 15. These two spoutmembers and the intervening stays are cast together so that this wholestructure constitutes a single piece. Between the two spout members 13and 14 is a passageway 16. This passageway opens into the upper chamber2 so that whenever the air from the lower chamber 3 is drawn up throughthe intake spout 9 and forced out through the outlet 11, air is drawn byinjector action from chamber 2 out through the nozzle or spout 14, sothat one operation of the fan tends to draw by fan operation the staleair from compartment 3, and draw by injector action the stale air fromcompartment 2.

Extending around the injector member is a flange 17 which is attached tothe floor 12 by means of screws 18. This member so engages the floor 12that there is an air-tight closure so that any air passing from thechamber 2 passes out through the outlet 14. In order to provide forfresh air when the stale air is being withdrawn from chamber 2, an inletventilator 19 is provided in the floor 12. While this ventilator isshown located in the floor 12 it may be located at other suitablepositions to collect fresh air from the wind or movement of the vehicle.

As thus far described applicants ventilating apparatus is not onlyadapted to be used with.

at the same time an adjacent chamber 20 may be ventilated by means of aspout 21 extending through the wall 8 from the chamber to the intakespout 9. By this means when the fan is operated it not only draws theair from compartment 3 but also from the adjacent compartment 20 andforces the air out through the injector nozzle 13.

While one particular arrangement and location of applicant's faninjector is shown it may be located in other positions, and may be usedwith various types and forms of rooms and compartments. It is obviousfrom the showing here that this fan injector may be used for removingstale air from three compartments at one time, while by proper use witha larger number of pipes connecting other compartments with the intakespout 9, other compartments may be ventilated and have the stale andimpure air removed therefrom as eilfectively as shown in connection withthe three compartments in the present drawings.

Attention is directed to the fact that movement of the boat will induceair movement through ventilator 19 and injector 14, and thereby induceair movement from a compartment such as the bilge 3 and a compartmentsuch as the gallery 20, without using the Ian.

I desire to comprehend within my invention such modifications as may beembraced within my claims and the scope of my invention.

Having thus fully described my invention, what I claim is new and desireto secure by Letters Patent, is:

1. In a ventilating apparatus, in combination with a plurality ofchambers having a covering, air current producing means on the wall ofone chamber, air passageways extending from said current producing meansto a plurality of chambers, means to conduct the air from the currentproducing means to a point without said chambers and in line with thecovering of the chambers, and means cooperating with said lastnamedmeans to draw the air from another chamber due to the force of the airexpelled by the current producing means.

2. In a ventilating apparatus, in combination with a plurality ofchambers, an air current producing means in one of said chambers, a pipeextending from said current producing means to certain oi. the otherchambers, means extending from the air current producing means to apoint without the chambers for conducting the air and directing it intoa horizontal direction, and means associated with the last-named meanscooperating with the air expelled by the current productwo chambers, onelocated above the other but 1118 means to withdraw the air from anotherchamber.

3. In a ventilating apparatus, a pair of chambers, an air currentproducing means located in one chamber and having an outlet extending toa point just without the chambers and bent horizontally, a pipeextending from said air producing means into the other chamber sothat byoperation of the air current producing means the air may be removed fromthe last-named chamber, and means associated with the discharge oftheair from the last-named chamber to eject the air from the otherchamber.

4. In a ventilating apparatus, in combination with a plurality ofchambers, ventilating means in one chamber having extending therefrom anoutlet and a plurality of inlets extending one into each of the otherchambers, and means on the outlet cooperating with the air passingthrough the .outlet to extract the air from the firstnamed chamber.

5. In a ventilating apparatus, in combination with a plurality ofchambers one above the other, current producing means in one chamberhaving an outlet and an inlet extending into the other chamber, aninjector means on the outlet end of said current producing means wherebythe current produced by the current producing means will extract the airfrom the first-named chamber, and means associated with the first-namedchamber for supplying fresh air thereto as the stale air is exhausted.

6. In a ventilating apparatus, in combination with a chamber having anopening, air current producing means in said chamber having an airoutlet, and a nozzle means on said air outlet fitting in said openingand extending in a horizontal direction, said nozzle means comprising aninner spout member forming a continuation of the outlet, and an outerspout attached to the chamber around theopening and supporting andforming with the inner spout member an annular outlet from the chamber.

'7. In a ventilating apparatus, in combination with a plurality ofchambers, an air current producing means in one chamber having intakeconnections with the other chambers and an outlet, and a nozzle for saidoutlet, said nozzle consisting of an inner spout member forming acontinuation of the outlet, and an outer spout member around the innerspout member and attached to the first-named chamber and supporting andforming with the inner spout member an annular outlet for said firstchamber.

EDWARD L. ANDERSON.

